243362172 has 48 divisors (see below), whose sum is σ = 608573952. Its totient is φ = 75493440.

The previous prime is 243362159. The next prime is 243362201. The reversal of 243362172 is 271263342.

243362172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704 + ... + 22127.

It is an arithmetic number, because the mean of its divisors is an integer number (12678624).

Almost surely, 2^243362172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243362172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304286976).

243362172 is an abundant number, since it is smaller than the sum of its proper divisors (365211780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243362172 is a wasteful number, since it uses less digits than its factorization.

243362172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23898 (or 23896 counting only the distinct ones).

The product of its digits is 12096, while the sum is 30.

The square root of 243362172 is about 15600.0696152293. The cubic root of 243362172 is about 624.3350128249.

The spelling of 243362172 in words is "two hundred forty-three million, three hundred sixty-two thousand, one hundred seventy-two".